Helmet liner



FIG. 1 is a top, rear, perspective view of a helmet liner showing ournew design;

FIG. 2. is a top plan view of the helmet liner shown in FIG. 1;

FIG. 3 is a rear elevation view of the helmet liner shown in FIG. 1;

FIG. 4 is a bottom plan view of the helmet liner shown in FIG. 1;

FIG. 5 is a front elevation view of the helmet liner shown in FIG. 1;

FIG. 6 is a right side elevation view of the helmet liner shown in FIG.1; and,

FIG. 7 is a left side elevation view of the helmet liner shown in FIG.1.

The broken lines shown in the drawings represent portions of the helmetliner that form no part of the claimed design.

CLAIM The ornamental design for a helmet liner, as shown and described.